Feeling pressure in the ear, runny nose. Could this be due to the use of neti pot?

When I blow my nose it is coming out of my left ear duct. My left ear also feels like it has pressure in it. I was sick with cold sore throat for about two weeks but the cold and sore throat are gone, now I just have a runny nose. Will this clear up on it s own, or do I need to see my doctor? I used a nettie pot when I was sick could that have something to do with this?